CN107192476B - Method for detecting temperature of slurry in cooking equipment - Google Patents

Method for detecting temperature of slurry in cooking equipment Download PDF

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Publication number
CN107192476B
CN107192476B CN201710395443.9A CN201710395443A CN107192476B CN 107192476 B CN107192476 B CN 107192476B CN 201710395443 A CN201710395443 A CN 201710395443A CN 107192476 B CN107192476 B CN 107192476B
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temperature
slurry
detecting
heating
time
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CN107192476A (en
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王旭宁
唐拥华
詹应安
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Joyoung Co Ltd
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Joyoung Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/004—Cooking-vessels with integral electrical heating means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A47J43/044—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the top side
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/02—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Cookers (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

The embodiment of the invention discloses a method for detecting the temperature of serosity in cooking equipment, wherein one or more temperature sensors are arranged in the cooking equipment, the temperature sensors are in direct contact with the serosity in the cooking equipment and are used for detecting the temperature of the serosity, the method comprises the steps of heating the serosity to a preset first temperature T1 at a preset first power P1, detecting a second temperature T2 of the serosity after stirring the serosity for a plurality of times, heating the serosity to a preset third temperature T3 at a second power P2, detecting a fourth temperature T4 of the serosity after stirring the serosity for a plurality of times, taking the time from the second temperature T2 to the third temperature T3 as a heating time T, taking the temperature difference between the fourth temperature T4 and the second temperature T2 as a temperature rise value △ T in the heating time T, and taking a temperature rise value △ T in the heating time T as a calculation parameter when the mass of the serosity is calculated through the law of conservation of energy.

Description

Method for detecting temperature of slurry in cooking equipment
Technical Field
The embodiment of the invention relates to the technical field of control of cooking equipment, in particular to a method for detecting the temperature of slurry in the cooking equipment.
Background
In the pulping process by adopting cooking equipment, if the cooking is carried out according to the material amount and the water amount specified in the specification, the cooking equipment heats the serous fluid to the preset temperature according to the preset time, and the serous fluid can absorb certain heat according to the pre-calculated value according to the law of energy conservation (the machine generates heat and the absorption efficiency is equal to the serous fluid absorption heat); however, if the amount of the added materials is reduced, the time for heating the serous fluid to the preset temperature by the cooking equipment is reduced, and the heat absorbed by the serous fluid is also reduced; similarly, if the amount of the added material is increased, the time for the cooking device to heat the slurry to the preset temperature is increased, and the amount of heat absorbed by the slurry is also increased. Because the law of conservation of energy is a function of the mass of the material, the amount of the material added in the current pulping process can be calculated according to the law. However, in calculating the material amount according to the law of conservation of energy, the time for heating from one temperature to another temperature and the difference between the two temperatures are important parameters, which determine the accuracy of calculation of the material amount. At present, for temperature detection, a common method is to record temperature values of a temperature sensor arranged in cooking equipment at a starting time point and an ending time point and directly obtain a difference of the two temperature values, because slurry is a large-area mixture, the temperature sensor can only detect the temperature of one point in the slurry, the temperature detection method obviously cannot accurately detect the temperature of the slurry, and a method capable of accurately detecting the temperature is urgently needed to be developed by related technicians.
Disclosure of Invention
The embodiment of the invention provides a method for detecting the temperature of slurry in cooking equipment, which can accurately detect the temperature of the slurry, thereby improving the calculation accuracy of the material quantity.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
a method for detecting the temperature of slurry in cooking equipment comprises the steps that one or more temperature sensors are arranged in a cooking device, and the temperature sensors are in direct contact with the slurry in the cooking equipment and used for detecting the temperature of the slurry; the method comprises the following steps:
heating the slurry to a preset first temperature T1 at a preset first power P1;
detecting a second temperature T2 of the slurry after the slurry is stirred for a plurality of times;
heating the slurry to a preset third temperature T3 at a second power P2;
detecting a fourth temperature T4 of the slurry after stirring the slurry for a plurality of times;
the time for heating from the second temperature T2 to the third temperature T3 was taken as the heating time T, the temperature difference between the fourth temperature T4 and the second temperature T2 was taken as the temperature rise value △ T in the heating time T, and the temperature rise value △ T in the heating time T was taken as a calculation parameter when calculating the mass of the slurry by the law of conservation of energy.
Optionally, the method further comprises: detecting the temperature Tc of the slurry before heating the slurry to a preset first temperature T1, and directly stirring the slurry for a plurality of times when the detected temperature Tc of the slurry is greater than or equal to the first temperature T1; when the temperature Tc of the slurry is detected to be less than the first temperature T1, the slurry is heated to the first temperature T1 at the first power P1.
Optionally, the method further comprises: the second power P2 is a function of the second temperature T2.
Optionally, the functional relationship comprises:
a first order function: p2 ═ a ﹡ T2+ b; wherein a is a slope and b is a constant;
a quadratic function: p2 ═ c ﹡ (T2)2+ d ﹡ T2+ e; wherein c is a quadratic coefficient, d is a primary coefficient, and e is a constant;
step function: p2 ═ T2; wherein, the higher the T2, the smaller the P2.
Optionally, the third temperature T3 includes: the boiling point temperature and the spill-proof temperature of the slurry.
Optionally, the method further comprises: before heating the slurry, detecting the temperature of a circuit board in a machine head, the temperature of a motor and/or the temperature of a lower cover of the machine head of the cooking device, marking the temperature of the circuit board in the machine head, the temperature of the motor and/or the temperature of the lower cover of the machine head of the cooking device as Td, and compensating the mass calculation of the slurry through the temperature Td.
Optionally, agitating the slurry a plurality of times comprises: after stirring for N1 seconds, waiting for N2 seconds, and circulating the process for M times; wherein N1 is more than or equal to 0 and less than or equal to 60s, N2 is more than or equal to 0 and less than or equal to 60s, and M is more than or equal to 0 and less than or equal to 10 times.
Optionally, the law of conservation of energy comprises P η T △ T + △ C;
wherein, P is heating power within △ T time of temperature change, η is heating efficiency, m is mass of slurry, T is heating time, C is specific heat capacity of water, and △ C is mass compensation amount.
Optionally, △ C is f Td + h, where f and h are constants, and before heating the slurry, the head internal circuit board temperature, the motor temperature and/or the head lower cover temperature of the cooking device are detected, and the head internal circuit board temperature, the motor temperature and/or the head lower cover temperature of the cooking device are marked as Td.
Alternatively, when the third temperature T3 is the spill proof temperature:
correcting the value of the heating time t to t- △ t as a calculation parameter when calculating the mass of the slurry through an energy conservation law, wherein △ t is the time from the foaming of the slurry to the contact of the foam with the anti-overflow electrode;
wherein △ t is k P + n, and k and n are constants.
The embodiment of the invention has the following beneficial effects:
1. the embodiment of the invention comprises the steps of heating the slurry to a preset first temperature T1 with a preset first power P1, detecting a second temperature T2 of the slurry after stirring the slurry for a plurality of times, heating the slurry to a preset third temperature T3 with a second power P2, detecting a fourth temperature T4 of the slurry after stirring the slurry for a plurality of times, taking the time from the second temperature T2 to the third temperature T3 as a heating time T, taking the temperature difference between the fourth temperature T4 and the second temperature T2 as a temperature rise value △ T in the heating time T, and taking a temperature rise value △ T in the heating time T as a calculation parameter when calculating the mass of the slurry through an energy conservation law, fully stirring the slurry during temperature detection to enable the slurry to be fully mixed, achieve temperature equalization, improve the accuracy of temperature detection, starting calculation after the first stirring, and taking the timing accuracy as a calculation parameter when calculating the energy rise value △ in the heating time as a further calculation parameter of the mass of the slurry through the energy conservation law.
2. In the scheme of the embodiment of the invention, the second power P2 and the second temperature T2 are in a functional relation, so that the heating power is matched with the current temperature of the slurry, the cooking equipment can adapt to various high-temperature water slurry making, the material soaking effect is consistent, and the slurry making effect is good in consistency.
3. In the embodiment of the present invention, the third temperature T3 includes: the boiling point temperature and the spill-proof temperature of the slurry. The temperature measurement can be standardized according to the boiling point temperature and the anti-overflow temperature, the accuracy of the temperature measurement is increased, and the third temperature T3 is set to be higher, so that the pulping period can be shortened.
4. According to the embodiment of the invention, before the slurry is heated, the temperature of the circuit board in the machine head of the cooking equipment, the temperature of the motor and/or the temperature of the lower cover of the machine head are/is detected. According to the embodiment, the quality calculation of the slurry can be compensated through the temperature of the circuit board in the machine head of the cooking device, the temperature of the motor and/or the temperature of the lower cover of the machine head, and the accuracy of the quality calculation of the slurry is improved.
5. The embodiment of the invention comprises the following steps: after stirring for N1 seconds, waiting for N2 seconds, and circulating the process for M times; wherein N1 is more than or equal to 0 and less than or equal to 60s, N2 is more than or equal to 0 and less than or equal to 60s, and M is more than or equal to 0 and less than or equal to 10 times. The slurry stirring can be controlled by the scheme, so that the slurry is stirred more uniformly and the temperature is more balanced, and the accuracy of temperature detection is further improved.
6. According to the embodiment of the invention, when the third temperature T3 is the anti-overflow temperature, T is T- △ T, △ T is the time from the foaming of the slurry to the contact of the foam with the anti-overflow electrode, the temperature rise time can be compensated when the third temperature T3 is the anti-overflow temperature, so that the accuracy of time detection is improved, and the accuracy of material calculation is further improved.
Drawings
The embodiments of the present invention will be further described with reference to the accompanying drawings:
FIG. 1 is a flow chart of a method for detecting the temperature of a slurry in a cooking device according to an embodiment of the present invention;
fig. 2 is a schematic view of the installation of the temperature sensor in the cooking apparatus according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
example one
A method for detecting the temperature of slurry in cooking equipment comprises the steps that one or more temperature sensors are arranged in a cooking device, and the temperature sensors are in direct contact with the slurry in the cooking equipment and used for detecting the temperature of the slurry; as shown in fig. 1, the method comprises steps S101-S105:
and S101, heating the slurry to a preset first temperature T1 at a preset first power P1.
In the embodiment of the present invention, in order to accurately detect the temperature of the serum in the cooking apparatus, one or more temperature sensors need to be provided in the cooking apparatus in advance, and in order to accurately detect the temperature of the serum, the temperature sensors need to be capable of being in direct contact with the serum in the cooking apparatus when being provided. As shown in fig. 2, it is a simple schematic diagram of the structure of the soymilk machine, which comprises a machine head 1 and a cup body 2. In view of the above, the temperature sensors can be arranged on the inner bottom wall 4 of the cup body 2, also on the side wall 5 close to the inner bottom wall and at the lower cover projection of the handpiece 1, as at the position 3. It should be noted that the above contents are only one or more mounting positions of the embodiments of the present invention, and are not limited to the above mounting positions, and the embodiments of the present invention do not limit the specific positions of the temperature sensors.
In the embodiment of the invention, when a plurality of temperature sensors are arranged, the temperature values detected by the plurality of temperature sensors can be averaged to obtain more accurate slurry temperature, and weighting coefficients can be preset to perform weighting calculation on the temperatures measured by different temperature sensors. The embodiment of the invention does not limit the specific algorithm of the temperature detection of the plurality of temperature sensors.
Optionally, the law of conservation of energy comprises P η T △ T;
wherein P is heating power within △ T time of temperature change, η is heating efficiency, m is mass of slurry, T is heating time, and C is specific heat capacity of water.
In the embodiment of the present invention, since the temperature detected in the embodiment is used for calculating the mass (m) of the slurry according to the law of conservation of energy, and is particularly suitable for calculating the △ T in the above equation, the accuracy of the temperature determines the accuracy of △ T, and thus the accuracy of the calculated mass of the slurry, since the temperature of the slurry is unstable when the cooking apparatus is started and the heating power does not reach the equilibrium state, the temperature detection may be inaccurate when the temperature detection is started, and based on this consideration, the temperature detection may be started after the slurry is heated to a preset temperature, namely, the first temperature T1, with a certain power (such as the first power P1).
In an embodiment of the present invention, the first power P1 may include: 5000-: t1 is more than or equal to 30 degrees and less than or equal to 75 degrees.
Optionally, the method further comprises: detecting the temperature Tc of the slurry before heating the slurry to a preset first temperature T1, and directly stirring the slurry for a plurality of times when the detected temperature Tc of the slurry is greater than or equal to the first temperature T1; when the temperature Tc of the slurry is detected to be less than the first temperature T1, the slurry is heated to the first temperature T1 at the first power P1.
In the embodiment of the present invention, since the user may directly use the hot water when pulping, and the temperature of the hot water may have reached or exceeded the first temperature T1, before heating, the temperature of the slurry may be detected to determine whether the initial temperature of the slurry has reached the first temperature T1. When the temperature Tc of the slurry is detected to be greater than or equal to the first temperature T1, the heating process in step S101 is not required to be performed, and the process may be directly performed to the stirring process in step S102, that is, the slurry is directly stirred for multiple times; when the temperature Tc of the slurry is detected to be less than the first temperature T1, it is necessary to first heat the slurry to the first temperature T1 at the first power P1 from step S101.
And S102, stirring the slurry for multiple times, and detecting the second temperature T2 of the slurry.
In the embodiment of the invention, after the slurry in the cooking device is heated to the first temperature T1 through the above steps, the heating can be suspended, and the current slurry is stirred, so that the slurry in each part is fully mixed, and the temperature of each part of the slurry is equalized, so that the temperature of the slurry is more accurately measured in the following process.
Alternatively, agitating the slurry a plurality of times may include: after stirring for N1 seconds, wait for N2 seconds and cycle the process M times.
In the embodiment of the present invention, a plurality of times of the stirring process may be preset, and a time required for each stirring and a waiting time (or a pause time) in between may be preset, and a plurality of cycles may be set according to the set stirring time and waiting time. The embodiment can realize the controllability of slurry stirring, so that the slurry stirring is more uniform and the temperature is more balanced, and the accuracy of temperature detection is further improved. The stirring time used in each cycle may be the same or different, and the waiting time used may be the same or different.
Alternatively, 0 ≦ N1 ≦ 60s, 0 ≦ N2 ≦ 60s, 0 ≦ M ≦ 10 times.
In the embodiment of the present invention, in order to avoid the actual temperature inaccuracy caused by the dissipation of the temperature of the slurry by means of heat conduction due to the long stirring time and the long waiting time, none of N1, N2 and M can be set too large. In addition, in order to avoid insufficient mixing of the slurry and failure to reach a sufficient equilibrium temperature, none of N1, N2, and M should be set too small. Alternatively, N1 ═ 10s, N2 ═ 10s, and M ═ 3 times.
In the embodiment of the present invention, after the above-described stirring process, the measurement of the slurry temperature may be started to obtain the first temperature measurement value, i.e., the second temperature T2, by determining that the slurry temperature has reached equilibrium. This second temperature T2 is saved and heating of the slurry temperature may continue by the following steps to heat the slurry to another preset temperature value.
And S103, heating the slurry to a preset third temperature T3 at a second power P2.
In the embodiment of the present invention, the slurry may be heated to another preset temperature value, i.e., a third temperature T3, at the second power P2.
Optionally, the method further comprises: the second power P2 is a function of the second temperature T2.
In the embodiment of the present invention, the second power P2 may be a preset fixed power value or a variable power value, and the variable power value may be a function of the second temperature T2, i.e., the value of P2 varies with the change of the second temperature T2. The embodiment scheme can enable the heating power to be matched with the current temperature of the slurry, enables the cooking equipment to be suitable for various high-temperature water slurry making, enables the material soaking effect to be consistent, and enables the slurry making effect to be good in consistency.
Optionally, the functional relationship may include:
a first order function: p2 ═ a ﹡ T2+ b; wherein a is a slope and b is a constant;
a quadratic function: p2 ═ c ﹡ (T2)2+ d ﹡ T2+ e; wherein c is a quadratic coefficient, d is a primary coefficient, and e is a constant;
step function: p2 ═ T2; wherein, the higher the T2, the smaller the P2.
In the embodiment of the invention, the coefficients in the functions can be obtained through a plurality of tests, so that the heating power can be matched according to different slurry temperatures, the pulping effect is further provided, and the consistency of the pulping process is better.
And S104, stirring the slurry for multiple times, and detecting the fourth temperature T4 of the slurry.
In the embodiment of the present invention, after the slurry temperature is heated to the third temperature T3 through the above steps, the current slurry temperature cannot be directly detected, and the slurry needs to be continuously stirred for a plurality of times to equalize the slurry temperature. The stirring manner in this step can refer to the embodiment in step S102.
In the embodiment of the present invention, after the above-described agitation process, the measurement of the slurry temperature may be started to obtain a second temperature measurement, i.e., a fourth temperature T4, by determining that the slurry temperature has reached equilibrium. The fourth temperature T4 was saved for calculation of the slurry mass by the fourth temperature T4 and the second temperature T2.
S105, the time from the second temperature T2 to the third temperature T3 is defined as a heating time T, the temperature difference between the fourth temperature T4 and the second temperature T2 is defined as a temperature rise value △ T within the heating time T, and the temperature rise value △ T within the heating time T is defined as a calculation parameter for calculating the mass of the slurry by the law of conservation of energy.
In the embodiment of the invention, the law of energy conservation shows that P is η T ═ C is m △ T, wherein P is the heating power in the period of temperature change △ T, η is the heating efficiency, m is the mass of the slurry, T is the heating time, and C is the specific heat capacity of water.
In the embodiment of the present invention, on the basis of obtaining the fourth temperature T4 and the second temperature T2, △ T ═ T4-T2, T is the time for heating from the second temperature T2 to the third temperature T3, C is the specific heat capacity of water, and C may be 4200, heating efficiency η ═ a × m + b (a, b are constants) may be obtained by actual measurement simulation, heating power P may be the above-mentioned second heating power P2, and the P value may also be obtained by calculation after detecting the voltage and current values.
In the embodiment of the present invention, △ T may be 20 ℃ to 30 ℃, since the first temperature T1 (the temperature before performing agitation in order to obtain the second temperature T2) may include 30 DEG.ltoreq.T 1.ltoreq.75 DEG, the third temperature T3 temperature may include 50 DEG.ltoreq.T 1.ltoreq.100 DEG, and the fourth temperature T4 temperature is the temperature after performing agitation based on the third temperature T3, which is similar to the third temperature T3 temperature.
Example two
This embodiment differs from embodiment one in that the third temperature T3 may be the slurry boiling point temperature or the spill over temperature.
Optionally, the third temperature T3 includes: the boiling point temperature and the spill-proof temperature of the slurry.
In the embodiment of the present invention, when the third temperature T3 includes the boiling point temperature and the overflow prevention temperature of the slurry, there is a standard for the temperature measurement according to the boiling point temperature and the overflow prevention temperature, which increases the accuracy of the temperature measurement, and the third temperature T3 is set higher, which can shorten the pulping cycle.
Optionally, when the third temperature T3 is the overflow-preventing temperature, T is T- △ T, namely, the value of the heating time T is corrected to T- △ T as a calculation parameter when the mass of the slurry is calculated through the law of conservation of energy, △ T is the time from foaming of the slurry to the time when the foam contacts the overflow-preventing electrode, wherein △ T is k P + n, k and n are constants, and P is the heating power.
In the embodiment of the present invention, △ t may be determined according to the specific time from foaming to the time when the foam contacts the anti-overflow electrode detected in different pulping processes, and may also be calculated by the equation △ t ═ k × P + n, where k and n may be obtained through a plurality of experiments in advance.
In the embodiment of the invention, the temperature rise time can be compensated when the third temperature T3 is the spill-proof temperature, so that the accuracy of time detection is improved, and the accuracy of material calculation is further improved.
EXAMPLE III
This embodiment differs from the first embodiment in that compensation for the calculation of the mass of the slurry is added, such as the temperature of the circuit board in the head of the cooking device, the temperature of the motor and/or the temperature of the head lower cover.
Optionally, the law of conservation of energy comprises P η T △ T + △ C;
wherein, P is heating power within △ T time of temperature change, η is heating efficiency, m is mass of slurry, T is heating time, C is specific heat capacity of water, and △ C is mass compensation amount.
In the embodiment of the invention, △ C is added in the calculation of the mass of the grout, namely the compensation amount of other components in the cooking device to the mass of the grout, in addition to the energy absorbed by the grout when heating, the heat absorption and the heat dissipation of other components such as a handpiece part influence the measurement of m.
Optionally, the method further comprises: before heating the slurry, detecting the temperature of a circuit board in a machine head, the temperature of a motor and/or the temperature of a lower cover of the machine head of the cooking device, marking the temperature of the circuit board in the machine head, the temperature of the motor and/or the temperature of the lower cover of the machine head of the cooking device as Td, and compensating the mass calculation of the slurry through the temperature Td.
In the embodiment of the present invention, in order to obtain the compensation of the temperature of other components in the cooking apparatus, such as the head internal circuit board temperature, the motor temperature and/or the head lower cover temperature of the cooking apparatus, etc. for the quality of the slurry, it is necessary to detect the head internal circuit board temperature, the motor temperature and/or the head lower cover temperature Td of the cooking apparatus in advance before starting heating. On this basis, compensation for slurry quality can be achieved by the following equation.
Optionally, △ C is f Td + h, where f and h are constants.
In the embodiment of the present invention, the f and h values may also be obtained through multiple tests, and for different models, the f and h values are also different, and again, the specific numerical values are not limited.
The embodiment of the invention has the following beneficial effects:
1. the embodiment of the invention comprises the steps of heating the slurry to a preset first temperature T1 with a preset first power P1, detecting a second temperature T2 of the slurry after stirring the slurry for a plurality of times, heating the slurry to a preset third temperature T3 with a second power P2, detecting a fourth temperature T4 of the slurry after stirring the slurry for a plurality of times, taking the time from the second temperature T2 to the third temperature T3 as a heating time T, taking the temperature difference between the fourth temperature T4 and the second temperature T2 as a temperature rise value △ T in the heating time T, and taking a temperature rise value △ T in the heating time T as a calculation parameter when calculating the mass of the slurry through an energy conservation law, fully stirring the slurry during temperature detection to enable the slurry to be fully mixed, achieve temperature equalization, improve the accuracy of temperature detection, starting calculation after the first stirring, and taking the timing accuracy as a calculation parameter when calculating the energy rise value △ in the heating time as a further calculation parameter of the mass of the slurry through the energy conservation law.
2. In the scheme of the embodiment of the invention, the second power P2 and the second temperature T2 are in a functional relation, so that the heating power is matched with the current temperature of the slurry, the cooking equipment can adapt to various high-temperature water slurry making, the material soaking effect is consistent, and the slurry making effect is good in consistency.
3. In the embodiment of the present invention, the third temperature T3 includes: the boiling point temperature and the spill-proof temperature of the slurry. The temperature measurement can be standardized according to the boiling point temperature and the anti-overflow temperature, the accuracy of the temperature measurement is increased, and the third temperature T3 is set to be higher, so that the pulping period can be shortened.
4. According to the embodiment of the invention, before the slurry is heated, the temperature of the circuit board in the machine head of the cooking equipment, the temperature of the motor and/or the temperature of the lower cover of the machine head are/is detected. According to the embodiment, the quality calculation of the slurry can be compensated through the temperature of the circuit board in the machine head of the cooking device, the temperature of the motor and/or the temperature of the lower cover of the machine head, and the accuracy of the quality calculation of the slurry is improved.
5. The embodiment of the invention comprises the following steps: after stirring for N1 seconds, waiting for N2 seconds, and circulating the process for M times; wherein N1 is more than or equal to 0 and less than or equal to 60s, N2 is more than or equal to 0 and less than or equal to 60s, and M is more than or equal to 0 and less than or equal to 10 times. The slurry stirring can be controlled by the scheme, so that the slurry is stirred more uniformly and the temperature is more balanced, and the accuracy of temperature detection is further improved.
6. According to the embodiment of the invention, when the third temperature T3 is the anti-overflow temperature, T is T- △ T, △ T is the time from the foaming of the slurry to the contact of the foam with the anti-overflow electrode, the temperature rise time can be compensated when the third temperature T3 is the anti-overflow temperature, so that the accuracy of time detection is improved, and the accuracy of material calculation is further improved.
Although the embodiments of the present invention have been described above, the above descriptions are only for the convenience of understanding the present invention, and are not intended to limit the embodiments of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the embodiments of the invention as defined by the appended claims.

Claims (9)

1. A method for detecting the temperature of slurry in cooking equipment is characterized in that one or more temperature sensors are arranged in a cooking device, and the temperature sensors are in direct contact with the slurry in the cooking equipment and used for detecting the temperature of the slurry; characterized in that the method comprises:
heating the slurry to a preset first temperature T1 at a preset first power P1;
detecting a second temperature T2 of the slurry after stirring the slurry for a plurality of times;
heating the slurry to a preset third temperature T3 at a second power P2;
detecting a fourth temperature T4 of the slurry after stirring the slurry for a plurality of times;
the time for heating from the second temperature T2 to the third temperature T3 was taken as a heating time T, the temperature difference between the fourth temperature T4 and the second temperature T2 was taken as a temperature rise value △ T within the heating time T, and a temperature rise value △ T within the heating time T was taken as a calculation parameter when calculating the mass of the slurry by the law of conservation of energy.
2. The method of detecting temperature of slurry in a cooking apparatus of claim 1, further comprising: detecting the temperature Tc of the slurry before heating the slurry to a preset first temperature T1, and directly stirring the slurry for a plurality of times when the temperature Tc of the slurry is detected to be greater than or equal to the first temperature T1; when the temperature Tc of the slurry is detected to be less than the first temperature T1, heating the slurry to the first temperature T1 at the first power P1.
3. The method of detecting temperature of slurry in a cooking apparatus of claim 1, further comprising: the second power P2 is a function of the second temperature T2.
4. The method of detecting temperature of slurry in a cooking apparatus according to claim 3,
the functional relationship includes:
a first order function: p2 ═ a ﹡ T2+ b; wherein a is a slope and b is a constant;
a quadratic function: p2 ═ c ﹡ (T2)2+ d ﹡ T2+ e; wherein c is a quadratic coefficient, d is a primary coefficient, and e is a constant;
step function: p2 ═ T2; wherein, the higher the T2, the smaller the P2.
5. The method of detecting a temperature of a slurry in a cooking apparatus according to claim 1, wherein the third temperature T3 includes: the boiling point temperature and the spill-proof temperature of the slurry.
6. The method of detecting temperature of slurry in a cooking apparatus according to claim 1, wherein said agitating said slurry a plurality of times comprises: after stirring for N1 seconds, waiting for N2 seconds, and circulating the process for M times; wherein N1 is more than or equal to 0 and less than or equal to 60s, N2 is more than or equal to 0 and less than or equal to 60s, and M is more than or equal to 0 and less than or equal to 10 times.
7. The method of any one of claims 1 to 6, wherein the law of conservation of energy comprises P η T △ T + △ C;
wherein P is heating power within △ T time of temperature change, η is heating efficiency, m is mass of the slurry, T is heating time, C is specific heat capacity of water, and △ C is mass compensation amount.
8. The method of detecting temperature of slurry in a cooking apparatus according to claim 7,
△ C, wherein f and h are constants, before heating the slurry, detecting the temperature of a circuit board in a machine head, the temperature of a motor and/or the temperature of a lower cover of the machine head of the cooking device, and marking the temperature of the circuit board in the machine head, the temperature of the motor and/or the temperature of the lower cover of the machine head of the cooking device as Td.
9. The method for detecting the temperature of the grout in a cooking device according to claim 7, wherein when said third temperature T3 is a boiling-over preventing temperature, the value of heating time T is corrected to T- △ T as a calculation parameter when calculating the mass of the grout by the law of conservation of energy, △ T is the time from when the grout foams to when the foam contacts a boiling-over preventing electrode;
wherein △ t is k P + n, and k and n are constants.
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